general/defunct-social-networking-services
Surf Wiki
Tribe.net
Social networking website
NutshellMail
Social network aggregation service
Talkbiznow
Business networking site
Kactoos
Defunct social network service and group buying site
Lockerz
Social commerce website
Lost Zombies
Social network
Knetwit
Social networking and study aid website
Zoopy
Online and mobile social media community
Zune Social
Defunct social network
Makeoutclub.com
Social networking service (1999–2017)
ECRUSH
American social networking websites (1999–2011)
ConnectU
2000s social networking website